Industrial 436406 CP3 Conversion Kit with 120% CP3 Pump | 2011-2016 GM 2500HD/3500HD 6.6L Duramax LML

Features:

• Replaces factory CP4 with proven CP3 pump
• Includes 120% over CP3 for high output
• Supports builds over 900 horsepower
• Designed for 2011–2016 LML Duramax engines
• Prevents catastrophic CP4 fuel system failures
• Complete bolt-on conversion kit
• Ideal for high-performance and race builds
• CP3 offers long-term durability and reliability
• Requires custom tuning to operate correctly
• Compatible with EFILive and EZ LYNK tuning

Serious Fuel for Serious Power

If you're pushing big power out of your 2011–2016 LML Duramax, the stock CP4 pump simply isn't going to cut it—and honestly, it’s more of a liability than a performance part. The Industrial Injection 436406 CP3 Conversion Kit with 120% Over CP3 Pump is the solution built for high-horsepower trucks that demand both performance and reliability. This complete kit replaces your failure-prone CP4 with a race-ready CP3 that delivers 120% more flow than stock, supporting builds that push well beyond 900 horsepower. Whether you're running massive injectors, a big turbo setup, or both, this pump ensures your engine gets the fuel it needs without the risk of sudden failure taking out your entire fuel system.

Engineered to Deliver, Built to Last

This isn't just a hardware upgrade—it’s peace of mind for anyone who's tired of worrying about CP4-related disasters. The CP3 platform has been battle-tested for years and is known for its durability under pressure, even in demanding competition and heavy towing applications. The kit comes with everything you need for installation, but custom tuning (like EFILive or EZ LYNK) is required to make it all run correctly. Once it's dialed in, the results are immediate—faster throttle response, stable fuel pressure, and the confidence to put your foot down without wondering if your pump will keep up. It’s the kind of upgrade that not only fuels performance but also lets you drive the truck the way it was meant to be driven.

Fits: 2011, 2012, 2013, 2014, 2015, 2016 GM 2500HD/3500HD 6.6L Duramax LML